第三年一百十一天

[nnozomi]

成语
博物洽闻 knowing a lot about many subjects, polymathic
前所未见 unprecedented, never seen before
物归原主 to return something to its rightful owner (see also the less literal 完璧归赵)
博物洽闻 bówù qià wén; 前所未见 qián suǒ wèi jiàn; 物归原主 wù guī yuánzhǔ

词汇
背, back; 背后, behind (pinyin in tags)
https://mandarinbean.com/new-hsk-3-word-list/

Guardian:
久闻亚兽族博物洽闻，耳目遍布天下, I have long heard that the Yashou have a wide range of knowledge and eyes and ears everywhere
这个案子呀，看上去离奇，但也不算前所未见的, this case seems quite odd but can't be considered unprecedented
之前调查的时候从你们家取走一些照片今天物归原主, we are returning some photographs taken previously from your home during the investigation
可现在在我们的背后是千千万万的同胞啊, but now we have innumerable comrades at our backs

Me:
什么意思呢，这个现象就是前所未见。
劳动的时候不要伤害腰背。